https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/ Prusa3D Forum Discussion Board en-US Sat, 18 Apr 2026 10:08:43 +0000 wpForo 60 https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-138830 Sat, 20 Apr 2019 23:09:38 +0000 Z Hop is the same as Lift Z? Why not just call it that?]]> General discussion, announcements and releases frak.n https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-138830 https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-138829 Sat, 20 Apr 2019 23:07:30 +0000 Sorry if this is a dump question but where do I enable/disable z-hop in Slic3r? I didn't see it under retraction Printer Settings/Extruder/Retraction/Lift Z

Peter]]> General discussion, announcements and releases PJR https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-138829 https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-138792 Sat, 20 Apr 2019 18:27:10 +0000 Sorry if this is a dump question but where do I enable/disable z-hop in Slic3r? I didn't see it under retraction]]> General discussion, announcements and releases frak.n https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-138792 https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22020 Thu, 05 Jan 2017 15:14:34 +0000 do you mean that the G1 E0.8000 F1800 should have been removed ? Yes, that will extrude a small blob immediately after the colour change. On some prints, it can make the outcome a little less "clean" but for most it is not noticeable.

Peter]]> General discussion, announcements and releases PJR https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22020 https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22014 Thu, 05 Jan 2017 14:19:30 +0000 Why not quieter? Because I can't hear any difference. My printer is quiet enough both with and without Zhopping.]]> General discussion, announcements and releases David T. https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22014 https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22013 Thu, 05 Jan 2017 14:17:31 +0000 ...
Be aware that the correct place for an M600 command is usually between a retract and a prime command; you will also have to remove the prime command line. inserted it here, got no problem with it:G1 X136.330 Y32.962 F1920 G1 E-0.8000 F1800 M600 M204 S1200 G1 X136.788 Y32.907 F4800 G1 Z5.298 F1002 G1 E0.8000 F1800 G1 X133.774 Y87.719 E3.0811 F2400 do you mean that the G1 E0.8000 F1800 should have been removed ?]]> General discussion, announcements and releases JeffJordan https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22013 https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22011 Thu, 05 Jan 2017 14:09:37 +0000 Why not quieter? Z hops are the second most noisy thing on the printer once you've silenced all the rest (the first being the nozzle fan). Anyway, i find z-hop very useful to avoid scratches on top layer and other problems during difficult prints.]]> General discussion, announcements and releases patrizio.b https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22011 https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22006 Thu, 05 Jan 2017 13:19:15 +0000 Do others find printing w/o Zhop faster and quieter for the following reasons?

- Less moves to lay down the same amount of filament
- Less vibrations from the z-motors jumping around Faster - yes (well, also depends on amount of Lift Z), quieter - no.]]> General discussion, announcements and releases David T. https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22006 https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22002 Thu, 05 Jan 2017 13:00:27 +0000 added the M600 commands manually (with an editor) at the correct places inside the gcode. Be aware that the correct place for an M600 command is usually between a retract and a prime command; you will also have to remove the prime command line.

Peter]]> General discussion, announcements and releases PJR https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-22002 https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-21996 Thu, 05 Jan 2017 11:59:50 +0000 that's why i like to use z-hop very often.
:P

but if you want to use the color print app, you'll probably run into severe problems because the app tries to detect the beginning of the layer where your color separation height appears in the gcode. to do so, the app analyzes the file and looks where the hotend is set to the height of the desired layer for the color change.
with z-hop this may occur several times instead of once, so you might end up with a gcode file that contains 100 instead of a single M600 command for the favoured layer break.
:evil:

i ran into the problem with my celtic cross print (see the hall of fame branch at this forum). fortunately i didn't try to print the gcode provided by the color print app and added the M600 commands manually (with an editor) at the correct places inside the gcode.]]> General discussion, announcements and releases JeffJordan https://forum.prusa3d.com/forum/english-forum-general-discussion-announcements-and-releases/when-does-zhop-really-make-a-difference/#post-21996